An actor disappeared, now UE5 crashes when I add it again

Development Programming & Scripting Blueprint
, ,
1

Hi everyone!

As the titles says, a blueprint actor I had on my current level disappeared. I assumed that I removed it accidentally, but now, when I want to place it in the same location it was before, unreal crashes and I get that message:

Assertion failed: Desc.GetSize() > 0 [File:D:\build++UE5\Sync\Engine\Source\Runtime\RenderCore\Private\RenderGraphValidation.cpp] [Line: 369] Creating buffer ‘Hair.PageIndexResolutionBuffer’ is zero bytes in size.

If I put the actor if any other location, unreal does not crash. It’s really weird and I can’t find a solution. If anyone knows how to solve, I’d be grateful!

2

hi, the disappeared actor, is it visible in world outliner?

3

No it isn’t, that’s why I tried to add it again

4

got it… it’s like when you put this actor in same location and click on play, it’s crashing? or

5

It crashes when I add it to the level and place it in the desired position, while being in the editor, I had no time even to play the game. I just moved the actor a bit, but it worries me because is very strange and I don’t know it that may cause any issues in the future.

6

Also, hair was on invisible. I think that’s remarkable since the error message seems to refer to the actor’s hair (a metahuman).

7

oh … okay let’s try three things

  1. can you right click on content and click on option - fix redirector references, or something like that and if it asks for any, delete them and check if crash is happening.
  2. can you duplicate the level, save all, put this bp actor again at same location in this new duplicated level and see if it crashes?
  3. can you maybe set hair back to visible or delete it for now and place again to see if it resolves?
8

Already tried fixing redirectors, and it did crash. I will try now doing the 2 other steps. Thank you a lot for all this help and answering so fast!

1 Like
9

okay so I just tried fixing redirectors again, it crashed, and now there are more missing files even in the explorer. I don’t understand what is happening… maybe using a backup I made a few days ago it’s easier

10

oh… okay yes … i too now see the importance of backups or version control also is best so that you can always revert back to working commit

11

and i think due to this missing references or old references, its getting crashed. Did you try the other two steps too? crashes happening?

12

I just tried duplicating the level and placing the actor, and it worked! I think this has been the weirdest bug I had using unreal, I was a bit scared about losing more files, thank you a lot! :slight_smile:

13

ya… it works sometimes like this … haha okay, glad you got that solved

1 Like
14

This topic was automatically closed 30 days after the last reply. New replies are no longer allowed.